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Michael Shaffer, a civil engineer from the U.S. Army Corps of Engineers’ Walla Walla District, measures the depth of root intrusion on the Mill Creek Levee Dec. 9, 2015, following Phase-1 maintenance removal of the land-side vegetation which jeopardized the structural integrity of the levee. District Geotechnical Section levee experts examined several test pits excavated at various points along the mile-long levee and determined removing problematic roots would require “grubbing” roughly two feet into the levee. In some locations, where tree roots have extended deeper into the levee structure, more extensive excavation and repairs may be required. Phase-2 repair work on the south levee from the division works beginning near the Mill Creek Office, progressing toward the Jones Ditch is slated to begin in early December 2016 and take approximately 3 months to complete. Additional Phase-2 repair work will occur as funding becomes available.
Mill Creek Levee Maintenance
10/18/2016 2:56:00 PM
Lock Outage Web button
2016-2017 Lock Outage
9/12/2016 4:49:00 PM
Dworshak Reservoir Nutrient Supplementation Project
US Army Corps of Engineers
8/25/2016 4:38:00 PM
Ice Harbor Lock and Dam upstream of the Tri-Cities on the Lower Snake River celebrated its 50th anniversary of construction by the U.S. Army Corps of Engineers, June 16, 2012 at the dam. It was built from 1956 to 1962 and dedicated by Vice-President Lyndon B. Johnson on May 9, 1962. Corps of Engineers photos. (Lock and north fish ladder construction, looking NW)
Historical Ice Harbor Construction
7/29/2016 4:28:00 PM
Looking upstream from North short/from Franklin County
Historical Ice Harbor Construction
7/29/2016 4:28:00 PM
Ice Harbor Lock and Dam upstream of the Tri-Cities on the Lower Snake River celebrated its 50th anniversary of construction by the U.S. Army Corps of Engineers, June 16, 2012 at the dam. It was built from 1956 to 1962 and dedicated by Vice-President Lyndon B. Johnson on May 9, 1962. Corps of Engineers photos. (Navigation lock construction, looking east or upstream)
Historical Ice Harbor Construction
7/29/2016 4:28:00 PM
Lock excavation, looking West/downstream
Historical Ice Harbor Construction
7/29/2016 4:28:00 PM
Ice Harbor Lock and Dam upstream of the Tri-Cities on the Lower Snake River celebrated its 50th anniversary of construction by the U.S. Army Corps of Engineers, June 16, 2012 at the dam. It was built from 1956 to 1962 and dedicated by Vice-President Lyndon B. Johnson on May 9, 1962. Corps of Engineers photos. (Lock construction, looking SE)
Historical Ice Harbor Construction
7/29/2016 4:28:00 PM
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